Question

【题目】 A material is what something is made of. There are 5 basic materials. Most things are made with these materials. Some things are made of metal. Some things are made of glass. Some things are made of wood. Some things are made of cloth. And some things are made of plastic.

There are some other materials. But they are not used as much as these 5 materials.

Let's talk about metal first. Metal is very heavy. And it is very hard and strong. It usually feels cool if you touch it. We use metal to make lots of things. We use it for forks and knives. We use it for keys. We use it for cars. We use it for these things because it is very strong.

Next, let's talk about glass. Glass is very smooth. It feels cool to touch. It is not as heavy as metal. It is hard. But it is not strong. It breaks very easily! Then why do we use it? We use it because it is clear! You can see through glass! That's why we use it for windows. That's also why we use it for glasses.

Now, let's talk about wood. Wood is lighter than metal and glass. It is not as strong as metal. But it is much stronger than glass. We use wood to make lots of things. Things made of wood are usually light and hard and strong. Chairs and tables are made of wood. Pencils are made of wood.

Now let's talk about cloth. Cloth is very light. It is much lighter than wood. And it is very soft. We use cloth to make lots of things. For example, it is used to make clothing. And it is used to make blankets.

Last, let's talk about plastic. Plastic is also very light. But it is different from cloth.

Sometimes it is soft. And sometimes it is hard. Plastic can be used to make thin plastic bags. These are light, soft, and strong. But plastic can also be used to make bicycle helmets. These are light, hard, and strong. A helmet and a bag seem different. But they are both made from plastic.

【1】Which sentence from the passage best describes the main idea?

A."We use cloth to make lots of things.”B."Metal is very heavy."

C."There are 5 basic materials."D."A helmet and a bag seem different."

【2】In Paragraph 5, the passage says, "Wood is lighter than metal and glass." What is the main purpose of this sentence?

A.To explain something.B.To recommend something.

C.To compare something.D.To demonstrate something.

【3】Which material would you use if you wanted to make something that was strong and very light?A.Plastic. B.Wood. C.Metal. D.Glass.

【4】In this passage, the author talks about ______________.

A.hard things first, then soft thingsB.heavy things first, then light things

C.strong things first, then weak thingsD.cool things first, then warm things

Answer 1

【答案】

【1】C

【2】C

【3】A

【4】B

【解析】

本文主要讲述了生活中制作东西时使用得较多的5种基础材料，并对他们的用处和优缺点进行了阐述。

【1】主旨大意题，通看全文可知，全文在讨论5种基本的材料的优缺点，并且他们可以用来做什么，故选C。

【2】细节理解题，Wood is lighter than metal and glass.木材比金属和玻璃要轻得多。根据句意可知是把木材的特点与金属和玻璃的进行对比，故选C。

【3】细节理解题，题意为想要轻且坚固的材料做东西。Metal is very heavy. And it is very hard and strong. 金属非常重，并且它是非常硬的、坚固的。Glass is very smooth.It is not as heavy as metal. It is hard. But it is not strong.玻璃是很光滑的。它不像金属那样重。它较硬但不坚固。Wood is lighter than metal and glass. It is not as strong as metal 木材比金属和玻璃都要轻，但是它不像金属那么坚固。Cloth is very light. And it is very soft. 布料很轻，也很软。 But plastic can also be used to make bicycle helmets.These are light, soft, and strong但是塑料也能被用来做自行车头盔，这些都很轻、软和坚固。因此对比5种材料，只有塑胶符合这些特点。故选A。

【4】细节理解题，根据题意是想知道作者是根据什么顺序来写的这篇文章。通观全文可知在讨论每种材料的时候都是按照轻重的顺序来写的。故选B。